Valve structure.



v S. A. WHITEHOUSE.

VALVE STRUCTURE.

APPLICATION FILED DEC. 23, 1912.

Patented Jan. 13, 1914,

2 SHEETS-SHEET 1.

Twi .mllm 3g INVENTOR ATTORNEY l l I WITNESSES HOUSE, a citizen of the United States, residothers, while avoiding some of the disadvanvalve, 2. manipulating handle and stem simivalve and the remaining movement is easily tatable on an axis perpendicular to the longi SAMUEL A. WHITEHOUSE, OF CHICAGO, ILLINOIS.

var-vs STRUCTURE.

Specification of Letters Patent.

Patented n. 13, 1914.

Application tiled December 23, 1912. serial No; 788,256.

To all whom it may concern:

Be it known that I, SAMUEL A. WHITE- ing at Chicago, in the county of Cook and 'State of Illino1s, have invented a new and useful Valve Structure, of which the following is a specification.

This invention has reference to improvements in valves, and its object is to provide a valve having the advantages of the globe valve, the gate valve, the spigot valve and tages of such types of valves.

The valve of the presentinventionis provided with a body member .or casing which in general is common to several types of lar to that of certain types of gate and globe valves and a closing member or valve pro or acting in a manner similar .to a gate va ve, and also in a manner similar to a spigot valve.

The valve structure of the present invention is provided with a valve member rotudinal axis of the valve structure and at the same time movable lengthwise of the axis of rotation, while the seat for the valve member is of reduced or limited area. As a result of this construction the valve member on opening first moves from its seat in the direction of the axis of rotation, and is then turned throughan arc of about ninety do the valve member is in line with the ends of the valve casing, thus providing a free passageway through the valve casing of a size approaching that of the gate valve. At the same time the initial movement of the valve loosens it from its seat similar to the action of a globe valve, whereupon the ressure begins to equalize on opposite sldes of the accomplished. On closing the valve the reverse operation takes place and when contact is established'in a manner similar to a globe valve, but with a movement like that of a gate valve where there is a wedging of the valve member in its seat.

The limited area of the seat for the valve member renders accurate fitting by 'rinding unnecessary, and in this respect ifiering from a spigot valve where the spigot member must be well fitted to the seat in order to prevent leakage.

The invention will be best understood froma consideration of the following detailed description, taken in connection with the accompanying drawin s forming a part of this specification, with t e further under-- standing that while the drawings show a practical embodiment of the invention, the V latter is-not limited to any strict conformity with the showing of the drawings, but may be changed and modified so long as such changes and modifications mark no material departure from the salient features of the invention. a

In the drawings :Figure 1 is a longitudinal diametric section of a valve structure embodyingthe present invention, the section being taken in a plane coincident with the axis of rotation of the valve member, the latter being shown in the clos'ed position. Fig. 2 is a view similar to Fig. 1 but with the valve member in the preliminary open position. Fig. 3 is a cross section on the line 3-3 of Fig. 2, but showing the valve membar in the full open position. Fig. 4 is a section similar to that of Fig. 1 but limited to the valve casing. Fig. 5 is an elevation of the valve member by itself. Fig. 6 is a plan i view of the structure shown in Fig. 5. Fig.

employed in the valve. Fig. 8 is an edge view of the structure of Fig. 7 in the uninverted position. Fig. 9 is a plan view of a plate designed to coact with the structure of Fig. 7.

In the drawin s there is shown a valve casing 1 which 1n external form may be similar to the ordinary lobe valve, and is provided with the usual internally threaded terminal necks 2 for the attachment of the valve structure to pipes, but because of the construction of the valve the body of the casing may be thinner than is customary in globe valves, as will appear from the cross section of Fig. 3.

Considering the valve structure as installed in an upright position and attached to horizontally disposed pipe, the bottom portion of the valve casing between the necks 2 may be rounded out, as indicated at 8, and at the central portion this rounded out parthas formed on its inner wall a stud 0r boss 4 in which there is provided a seat or bore 5, the longitudinal axis of which is perpendicular to the longitudinal axis of the necks 2.

At what may be termed the top of the casing, that is, the portion diametrlcally oppo- .4 is an inverted plan view of a disk member stem 13 having at its outer or accessible end.

. nal annular flan e of a. size to engage the site the boss 4:, the casing is formed with another neck 6 having its outer end internally threaded for the reception of a bonnet 7 in turn provided with a centralized neck 8 externally threaded for a cap nut 9 shaped to hold a follower 10 in the neck, so as to retain packing 11 therein. At what may be termed the inner end of the'bonnet the packing space is terminated by an inturned annular' shoulder 12. Confined in the neck 8 by the packing and packing gland is a valve a hand wheel 14 or other handle whereby the valve stem may be readily rotated. This stem Where extending through the packing gland is formed or provided with an extershoulder 12, an in turn be engaged by the packing 11 or other means, so that while the valve stem may be readily rotated it is held against longitudinal movement byth'e packing. That end of theyalve stem 13 remote fromthe' hand wheel 14 and immediately adjacent the flange 15. is diametrically en' lar ed, as indicated at 16, and thereexterthe valve stem is continued beyond the enlarged portion 16 in an externally threaded axial extension 18 of smaller diameter than the portion 16. The'screw threads of the portion 18 are in an opposite direction to the threads17. on the port1on 16, this arrange ment being for a purpose which will presently'appear. The valve stem with the flange 15, enlargement 16 and extension 18 may be all formed in'one' iece or at least is f effectively integral'throug out.

The interior of the neck inside of the casin is, another shoulder-20 .also annular. The ast-named shoulder prov vides a seat for a disk 21 Of a .thiplmess to .reach to the shoulder 19 when restin onthe shoulder 20, and this diskis clamps 'to the shoulder 20fby the-threaded ortion' of the. 1 bonnet 7 which ism'ade of a engiph to per form such ofiice. The disk 2l has a centre111$ located opening therethrough, ji"whic opening is longer in'pnefldirection than the other and in the longer direction a preaches comparatively close to-theriino thedmk Y where the ends of the opening are as indicated at 23 each'on an arostruek m the center of the long sides oithe r ns ii diat fl awe h r ip ith: 23, and

ta -la er. intersecti the. time ends, thisope'nin'g may be o any otherfshape suitable for the purpose for 1771110111113 open ing is intended,.wh1c hpurposei 'will herein I $121 the I corresponding; ends "'Tof the arcsj 11s the openingf22 is shownn'the ge'neral form of an elongated r'ec'tan lewith rounded 7 of the disk are lugs 25, 26, respectively, these 7 lugs being shown in the form of right-angle segments, but such shape is not at all obligatory, the purpose of the lugs being to serve quite closely and, yet freely. The plate 27 which is shown separately in Fig. 9 has a central passage 28v appropriatel threaded to p receive the threads 17 of the en argement 16. Near one end the plate 27 carries a pin 29, perpendicular'to the plate or other means for the purpose may be use The threaded extension --18 of the valve stem enters a threaded head 30 at one end of a taper valve 31 .having oppositely posed are shaped wings 32 connected together at one end by the head 30 and at the other end by another-head 33, which latter is provided with a central axially extended stud 34 adapted to the passage 5 in the boss 4 and fitting the latter snugly yet freely.

. Extending from the inner end of the neck 6 to the bottom portion 3 of the casing are oppositely disposed pairs of ribs 35 which may be integral with the inner wall of the casing andappropriatelyv ofisettherefrom;

these ribs merging at the ends into circular flanges 36,37, respectively,,at the to and bottom of the interior of the casing. hese edges of the ribs 35 presented 'toward the interior of the casing are .curved' and tar pered' with respect tothe longitudinal axis of the 'valvestem andof the valve 31 car'- 6 is provided with an annular-shoulder 19 and interior to this shoulder and spaced therefrom toward the the ca'sing, wings 'wil seat against the ribs and so 00- .acting; with the wings close the passage through the'val've casing. When the valve .member 31- isturned from the closed pos1- tion through an arc of about ninety degrees,

thewings 32 then s an the respective pairs -'of r ibs on opposite sides ofthe central longiftlfdinal axis of the casing "and the interior edges of the wings 32 being beveled, as mdicated at 38, there is provided a passage through the valve casing. and through t e valve; member between the wings substanis'shown in 1g. 1, in which the plate 27 is indicated as lod gedgin the passage 22and the "valve member 31 is so tdlSPOSBd'tllflt the wings 32 are in closing relation to the assage'through the'valve' and, moreover, t eir tially equal to-the spacing apart'of the r1 bs 35 with respect to the ,eentral longitudinal faxisof the casing; f v I 1 .2 -Thelclosed osition ofthe valve structure" 35', while the ends of these wings are in firm seating relation to the flanges 36 and 37, re-

spectively. The passage through the valve M the passage 22 in a direction away is therefore sealed at all points where the ribs and flanges 36 are engaged by the valve member 31, and this valve member because of its arrangement and function may be termed a skeleton plug valve, or spigot valve. Under the conditions just assumed the plate 27 and the corresponding head 30 of the valve lug are separated to the greatest extent. guppose, now that it is desirable to open the valve. 'lhe valve stem is turned by means of thehand wheel 14 in the proper direction which in the structure shown is counterclockwise to an operator manipulating the valve stem, and the first action of the valve stem is to screw the extension 18 into the head 30 of the plug 31, thus moving the latter longitudinally toward the valve stem, since the latter is incapable of longitudinal movement, and at the same time the action of the threads 17 upon the plate 27 is to move this late in fi om the bonnet 7 and toward the oncoming valve plug 31. The plate 27 so long as it is within the passage 22 cannot rotate because of the non-circular shape of the passage and plate, nor can the valve plug 31 rotate because of the pin. 29 connecting the'plate 27 with the valve plug, but this pin connection does not interfere with the approach of the plate 27 and valve plug 31. This approach of the plate and plug continues so long as the plate 27 remainswithin'the passage 22, but by the time-the plate escapes from the passage 22 the said plate and valve plug are brought into sufficiently close engagement to cause them to lock on the valve stem so that fur- I ther rotative movement of the valve stem will be participated in by both the plate and valve plug, and this movement is continued untll the appropriate edge of the plate 27 engages the lug 25 and 1s stopped thereby, thisposition marking the open position of the valve.

When it is desired to close the valve the valve stem is rotated in the opposite directionwhich carries the plate 27 and plug 31 rotatively in a clockwise direction until the plate 27 engages the lug 26, thus arresting further rotative movement, but now the continued rotation of the valve stem will cause a separation of the plate 27 and plug 31 inthe directibn of the longitudinal axis 6. verseof the spaces between the ribs 35 as of the stem, so that theplate 27 is moved into the passage 22 and the plug 31 which is now so situated that the wings 32 are transcasing, this movement being sufliciently extensive to cause the valve plug to seat firmly against the ribs 35 and the flanges 36 and 37, the stem 34 guiding the corresponding end of the valve plug by engagement in-the assage or seat 5 and the valvestem guidlngvtlllie other end of the valve plug.

en the opening movement is begun, the valve plug does not rotate at all but simply moves in thedirection of the longitudinal axis of the valve stem, thus at once lifting it from its seat, so that the valve plug is quite loose and'fluid under pressure, say water or steam, will find passage all about the plug, thus tending to equalize the pressure on opposite sides of the plug and rendering the further manipulation of the plug easy and the parts are so loosened and separated by the'time the valve plug is ready to turn that the turning movement is readily accomplished.

It will be observed that the valve of the present invention has the advantage of the quick opening and closing of the plug or spigot valve type and the non-rubbing seating of the valve or unseat-ing thereof such as is found in the globe and gate type of valves, and the large free opening of the gate type of valve, but without the comparatively massive structure of the latter type of valve, since the valve of the present invention need not be even as large as. a globe valve of the same capacity and need not be as large as a spigot valve of the same capacity, while it is much smaller than a gate valve of like capacity. Moreover, the valve of the present invention presents fewer parts and is more readily assembled or taken apart than '1. A valve structure comprising a casing with valve seats, a plug valve mounted in the casing and adapted to the seats, a rotatable valve spindle having a mounting in the casing holding it against longitudinal movement, the spindle and valve having direct connections within the casing permitting the rotation of the valve and constructed to cause movements of the latter in both di'recticns lengthwise of the axis of rotation, and

connections within the casing between the valve spindle and valve mounted on and constructed to be moved'by the spindle toward and from the valve in the direction of its longitudinal axisof rotation and in opposition to the longitudinal movements of the valve.

2. In a valve structure, a casing, a rotatable valve mounted therein for movement lengthwise of its axis of rotation, a holding member for the valve, means for causing movements of both the valve and holding member longitudinally and rotatively with respect to the axis of rotation of the valve,

. rection of the axis of'rotation, a member connected to the valve for rotation therewith and movable toward and from. the valve inthe direction of the axis'of rotation, a holding device for said member into and'out of engagement with which it is movable, and a rotatable valve stem havin means for holdingit against longitudina movements and also having means 1n engagement with both r the valve and the member connected therewith for imparting approaching and receding movements to said valve and member "in fixed relation with and rotative movements thereto when the member is disengaged from its seat.

4. A valvestructure comprising a suitable casing, a plug valve mounted therein for rotation and longitudinal movement, a seating device mounted in the casing, a valve spindle extending through the seating device and provided with oppositely directed threads, the valve being threaded to receive one set of threads of the spindle, and a plate threaded to receive the other set of threads of the spindle and movable therebyinto and out of engagement with the seating device and toward and from the ;valve, the said plate and valve having connections for holdlng them respect to rotative movements.

' 5. A valve structure provided with 9. casing having a passage therethrough and with 'tatable valve mounted [or movement in the oppositely disposed valve seats s aced apart in the direction of the longitudinal axis of said passage, said casing being provided to one side of the passage with a socket member and on the opposite side of said assage with a neck, a bonnet adapted to said neck and provided with a packing gland, a valve stem mounted in said gland for rotative movements but held thereby against longitudinal movements, said valve stem having oppositely directed screw threads within the casing, a seating member lodged in the neck of the casing, a plate. having a screw threaded portion traversed by one of the threaded portions of the spindle and movable thereby into and out of the seating member in the directionof the longitudinal axis of the spin die, and a plug valve adapted to the valve seats in the casing, said valve having at one end a threaded passage for the reception of the other threaded portion of the spindle and i at the other end an axial extension adapted to the socket at the corresponding portion of the casing, the plate carried by the spindle and the valve having connections permitting them to approach and recede-but holding them in fixed relation with respect to the rotation of the valve.

6, A valve structure provided with a casing having a passage therethrough and with oppositely disposed valve seats spaced apart in the direction of the longitudinal axis of said passage, said casing being provided to one side of the passage with a socket memof the casing, a plate having a screw threade'd portion traversed by one of the threaded portions of the spindle and movable thereby into and out of the seatin member in the direction of the longitudlnal axis of the spindle, and a plug valve adapted to the valve seats in the casing, said valve having at one end a threaded passage for the re ception of the other threaded portion, of the spindle and at the other end an axial extension adapted to the socket at the corresponding portion of the casing, the plate carried bythe spindle and the valve having.

connections permitting them to approach and recede but holding them in .fixed relation with respect to the rotationof the valve, said valve tapering longitudinally and comprising oppositely dis osed viings and terminal connect-ing hea sdefin'in a passage through the valve approximate y equal in area to the area inolosed by either valve seat of the casing. I

7. A valve structure rovided with a rodirection of its axis of rotation, a holding member for the valve also movable in the direction of said axis of rotation and connected to the valve for rotation therewith, means for causing the holding member and valve to approach and recede and for rotating said member and valve, and means for restraining the holding member and valve from rotation except when broughttogether.

8. A valve structure having a casing and a rotatable valve movable in the casing to open or closed position and mounted for movement in the direction of its axis of ro tation for seating or'unseating it in accordance with the direction of such longitudinal movement, a rotatable valve stem, and means for holding it against longitudinal movement, said stem having reverse screw threads 13a 80 ber and on the opposite side of said passage I noeaiee and the valve having a threaded head receiving one threaded portion of thestem, and means for holding the valve against rotation during its longitudinal movement comprising a member engaged by the other threaded portion of the valve stem and connected to the valve, stop means on the lastnamed member, and coactin'g stop means in fixed relation to the casing for holding the valve against rotation during its longitudinal movement.

9. A valve structure having a rotatable valve mounted for movement in the directionot its axis of rotation, a member adjacent one end of the valve and having a noncircular seat therein with oppositely disposed stop members exterior to the seat, a plate connected tothe valve for rotation therewith and movable into and out of the seat and conforming to said seat to hold the plate against rotation when in the seat, and means for causin the plate and valve to approach or rece e andto rotate when in the approached position.

10. A valve structure comprising a suitable casing, a valve mounted therein for movement both 'rotatively and longitudinally, a valve stem mounted in the casing tudinal movement in either direction, a plate traversed by the other screw threaded portion of the valve stem 'for causing movements of the plate toward and from thevalve, and a member with a passage therein for receiving the plate and beyond which member the'plate is movable by the valve stem, said plate and valve being connected for movements toward and from each other and simultaneous rotation, and sto mem bers in. the path of the late when in close approach to the valve or limiting the rotative movement of the valve in either direction.

In testimony, that I claim the foregoing as my own, I have hereto afixed my signature in the presence of two witnesses. SAMUEL A, WHITEHOUSE. Witnesses:

HEN Y F. THUMANIN,

JOHN T..BRULIE. 

